TestAtlas vs ChangeAtlas
TestAtlas is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑17.
TestAtlas is a plugin bundle for AI coding tools published by Karzone. No marketplace we read lists it any more. ChangeAtlas is an MCP server published by robyroro. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-29. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.
Where each is published
| Marketplace |  ChangeAtlas | |
|---|---|---|
| Community marketplace karzone/testatlas | Removed on 2026-10-17 Version: 0.1.3 Forks (GitHub): 0 Stars (GitHub): 3 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.1.0 Downloads/month (PyPI): 0 Downloads/week (PyPI): 24 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | TestAtlasno longer listed · | ChangeAtlas |
|---|---|---|
| Marketplaces that list it (differs) | 0 | 1 |
| Stars (GitHub) (differs) | 3 | 0 |
| Forks (GitHub) | 0 | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | On your machine (mcp-changeatlas) |
| Transport (differs) | Not stated | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 1, secrets among them: 0 |
| Hooks it runs (differs) | 1 | Not published |
| Parts of the bundle (differs) | 5 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/karzone/testatlas | github.com/robyroro/mcp-changeatlas |
| Changes in the last 7 days | 0 | 0 |
| First seen (differs) | 2026-10-13 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.
What to use instead of TestAtlas
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
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Find what a change could break beyond the diff.
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Find test gaps, generate grounded tests, and dynamically prove behavior with mutation testing.
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CI for your coding-agent setup: eval cases from your real configuration, release canaries, self-diagnosing reports, autonomous repair. Claude Code first-class; Codex and Gemini…
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Comprehensive testing toolkit for test strategy, coverage analysis, and test data generation. Includes test strategist agent for planning optimal testing approaches.
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Tells AI agents which files to test first — churn, coverage, and test mapping as risk scores.
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Structured codebase health attributes with severity-based agent routing and dashboard
What each says it does
TestAtlas
Find existing steps before writing new ones, trace the blast radius of a change, and keep the map fresh
ChangeAtlas
Local Git change impact and related test discovery with inspectable import paths
How to run each
TestAtlas
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
ChangeAtlas As a local MCP server: PyPI package
claude mcp add --env "CHANGEATLAS_ROOT=<YOUR_CHANGEATLAS_ROOT>" --transport stdio mcp-changeatlas -- uvx mcp-changeatlas serveRequires: CHANGEATLAS_ROOT
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
The marketplaces of TestAtlas publish no settings it asks for, so we do not compare settings.
What it can do: TestAtlas · What it can do: ChangeAtlas · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.